Machine for weighing grain



s. R. WILMOT.

Weighing Scales. No. 7,864. Patented Dec. 24, 1850.

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UNITED STATES, PATENT oFFroE.

SAML. R. WILMO'I, OF LA FAYETTE, INDIANA.

MACHINE FOR "WIEIGHING GRAIN.

Specification of Letters Patent N0 7,864, dated December 24;, 1850.

To all whom it may concern Be it known that I, SAMUEL R. WVILMQT, of LaFayette, in the county of Tippecanoe and State of Indiana, have inventeda new and Improved Mode of WVeighing Grain, called )Vilmots Cereometer,and I do hereby declare that the following is a full and exactdescription thereof, reference being had to the accompanying drawingsand to the lettersof reference marked thereon.

Figure 1 is a side elevation of the machine the scale being in aposition to receive grain to be weighed. Fig. 2 is also a sideelevationthe scale being in a position to discharge the grain afterbeing weighed. Fig. 3 is a rear elevation.

The nature of my invention consists in the peculiarity of the weighingbeam; likewise the manner of arranging the gate so as to tilt thevibrating or weighing scale by the closing of said gate, which, on itsreturn, strikes the gate rod and raises it; also the manner of stoppingthe operation of the machine by means of a bolt or ketch thrown from theindicator at any given period.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation :I construct mymachine as follows.

A suitable frame a is made, on which rests a large permanent hopper (b).At the base of the hopper I arrange a suitable bearing (0) on which ishung the weighing beam ((1) by means of the usual triangular or knifeedged shoulders, the peculiarity of which beam consists in the manner ofconstructing its short arm and placing the bearings so that as soon asthe beam begins to tilt the short arm lengthens and the long armshortens so that the moment the beam starts it strikes with quicknessand force. At the base or lower end of said hopper is an orifice that isclosed by a sliding valve or gate (e) which gate is attached to what Ishall term a gate (rod f) that plays in four bearings (g, g, g, 9,)at'the upper end of the gate rod is a link or rod (71,) connecting itand the short end of the weighing beam. At suitable places on the gaterod are filed notches (i, 2,) to prevent the gate from rising before theproper time, at the bottom of said rod is a small plate or hammer (j,).To the short arm of the beam is suspended a bale (7a) in which is hungan eccentric vibrating weighing box or scale (Z) by centers or bearings(m m) at the left end of said box or scale is a weight (n) which makesthat end about two pounds heavier than the right end but is preventedfrom falling farther back by means of an adjustive stop (0). In one endof said box 18 inserted an indicator (79) constructed on the principleof common clock work to which is attached a short pendulum which, by itsown gravitation, when the box vi brates operates the indicator and whenthe amount or number of drafts is weighed for which the machine is setabolt is caused to spring out of the hole (1") and catch against the bale(7c) and stop the operation of the machine.

The operation is as follows. The machine is put in a level position; theindicator (7?) is set for the amount to be weighed; the weight (g) isset for the number of pounds required to be weighed at each draft; andthen the grain must be let into the hopper (b) which immediately runsdown into the Weighing scale (Z), which, as soon as it receives theproper number of pounds descends; at the same time closing the gate (6)and bringing down the hammer (j) say with five pounds force against theright hand side of the scale (Z) which immediately tilts it; the notchescatch in the two lower bearings (g g) the grain in the scale (Z)instantly falls out, and as the scale returns,

it strikes against the hammer and disengaging the teeth of the rod fromthe bearmg plates (g g) the weight (q) then predominates and depressesthe long arm of the lever and raises the gate (6) and the grain againfalls into the scale (Z) as before, and thus the operation is continuedtill the number of drafts are weighed. that the machine is set for; thebolt then flies out of the hole (1*) and the operation of the machine isstopped by the said bolt striking against the bale (7c). The stop or pin(1;) strikes against the bale (7c) and arrests the farther turning ofthe scale as soon as it is in a proper position to dischargethe graintherefrom.

Having thus described the nature of my invention and improvement in theapparatus for weighing and discharging grain without the attention of anattendant, what I claim as new and desire to secure by Letters Patentis 1. The employment of the gate rod (f) connected to the sliding gate(6) and Weighing beam (cl) in comblnation with the said sliding gate andweighing beam constructed and operating as aforesaid for opening andclosing the gate to admit the grain to the dish or scale, or exclude ittherefrom at the required periods by the ascent and descent of the dishor scale during the operation of weighing and discharging the grain ashere-- in fully set forth.

- 2. I also claim the manner of attaching the vibrating weighing scale Zto the weighing beam (Z so that the said Weighing scale, as soon as therequired quantity of grain shall have entered it, shall descend andclose the gate and bring the hammer end 7' of the gate rod against thelip of the dish or scale and cause the scale to turn on its center m anddischarge its load of grain and immediately ascend and strike the gaterod and reopen the gate and assume its former position for anotherweight of grain-every operation of the weighing apparatus beingindicated by an index of the ordinary construction afiixed to the end ofthe scales-tl1e said scale being arranged below a hopper of the ordinaryconstruction.

3. I likewise claim turning the short end of the weighing beam upward inthe manner represented in Fig. 1 and placing the arms to which the baleof the scale are suspended on a line drawn through the fulcrum of theWeighing beam forming an angle of about 50 degrees with a horizontalline passing through said fulcrum for the purpose of increasing theleverage of the short arm of the beam simultaneously with diminishingthe leverage of the long arm as the scale or weighing dish descends, bywhich the gate is acted upon with increased speed and force in closingthe same.

In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

S. R. VVILMOT. Witnesses:

lVM. P. ELLIOTT, L. D. SMITH.

